/* ============================================================
   style_portfolio.css — Portfólio Profissional (portifolio.php)
   ============================================================ */

/* ---- Page Hero ---- */
.portfolio-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1a2332 100%);
    color: var(--white);
    padding: 4rem 0 3.5rem;
    text-align: center;
    position: relative;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20h20v20H20z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.portfolio-hero .container {
    position: relative;
    z-index: 1;
}

.portfolio-hero h1 {
    color: var(--white);
    font-size: var(--font-3xl);
    margin-bottom: var(--space-md);
}

.portfolio-hero p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-md);
    max-width: 600px;
    margin: 0 auto;
}

/* ---- Filter Buttons ---- */
.filter-section {
    padding: var(--space-2xl) 0 var(--space-md);
    background: var(--bg-body);
}

.filter-bar {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: 50px;
    background: var(--bg-white);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: var(--font-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ---- Portfolio Grid ---- */
.portfolio-section {
    padding: var(--space-xl) 0 var(--space-3xl);
    background: var(--bg-body);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

/* Card */
.portfolio-card {
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio-card.filter-hidden {
    opacity: 0;
    transform: scale(0.9);
}

.portfolio-card.filter-visible {
    opacity: 1;
    transform: scale(1);
}

.portfolio-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-6px);
}

.portfolio-card-banner {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.portfolio-card-banner svg {
    opacity: 0.9;
    transition: var(--transition-slow);
}

.portfolio-card:hover .portfolio-card-banner svg {
    transform: scale(1.1);
}

.portfolio-card-banner--blue {
    background: linear-gradient(135deg, #232f3e 0%, #37475a 100%);
    color: var(--white);
}

.portfolio-card-banner--accent {
    background: linear-gradient(135deg, #e68a00 0%, #ffb347 100%);
    color: var(--white);
}

.portfolio-card-banner--dark {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    color: var(--white);
}

.portfolio-card-banner--green {
    background: linear-gradient(135deg, #065f46 0%, #059669 100%);
    color: var(--white);
}

.portfolio-card-banner--purple {
    background: linear-gradient(135deg, #4c1d95 0%, #7c3aed 100%);
    color: var(--white);
}

.portfolio-card-banner--teal {
    background: linear-gradient(135deg, #134e4a 0%, #14b8a6 100%);
    color: var(--white);
}

.portfolio-card-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(6px);
    color: var(--white);
    font-size: var(--font-xs);
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 50px;
}

.portfolio-card-body {
    padding: var(--space-xl);
}

.portfolio-card-body h3 {
    color: var(--primary);
    margin-bottom: var(--space-sm);
    font-size: var(--font-lg);
    font-weight: 700;
}

.portfolio-card-body p {
    color: var(--text-muted);
    font-size: var(--font-sm);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.portfolio-tags {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.portfolio-card-action {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary);
    font-size: var(--font-sm);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.portfolio-card-action:hover {
    color: var(--accent);
    gap: var(--space-md);
}

/* ---- Technologies ---- */
.tech-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-lg);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xl) var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    transition: var(--transition);
    cursor: default;
}

.tech-item:hover {
    border-color: var(--border);
    background: var(--bg-body);
    transform: translateY(-2px);
}

.tech-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg-body);
}

.tech-item span:last-child {
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ---- Process Section ---- */
.process-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-body);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.process-step {
    text-align: center;
    padding: var(--space-xl);
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    position: relative;
}

.process-step:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--accent);
}

.process-step-number {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--primary);
    font-weight: 800;
    font-size: var(--font-xs);
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-step-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    display: block;
}

.process-step h4 {
    font-size: var(--font-base);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.process-step p {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin: 0;
}

/* ---- Portfolio CTA ---- */
.portfolio-cta {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    text-align: center;
    color: var(--white);
}

.portfolio-cta h2 {
    color: var(--white);
    margin-bottom: var(--space-md);
}

.portfolio-cta p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
    font-size: var(--font-md);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .portfolio-hero {
        padding: 3rem 0 2.5rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-card-banner {
        height: 160px;
    }

    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .process-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}